[XFS] Remove VN_IS* macros and related cruft.

[safe/jmp/linux-2.6] / fs / xfs / linux-2.6 / xfs_buf.h

diff --git a/fs/xfs/linux-2.6/xfs_buf.h b/fs/xfs/linux-2.6/xfs_buf.h
index 9e8ef8f..841d788 100644 (file)
--- a/fs/xfs/linux-2.6/xfs_buf.h
+++ b/fs/xfs/linux-2.6/xfs_buf.h
@@ -63,7 +63,7 @@ typedef enum {
 
        /* flags used only internally */
        _XBF_PAGE_CACHE = (1 << 17),/* backed by pagecache                 */
-       _XBF_KMEM_ALLOC = (1 << 18),/* backed by kmem_alloc()              */
+       _XBF_PAGES = (1 << 18),     /* backed by refcounted pages          */
        _XBF_RUN_QUEUES = (1 << 19),/* run block device task queue         */
        _XBF_DELWRI_Q = (1 << 21),   /* buffer on delwri queue             */
 } xfs_buf_flags_t;
@@ -143,7 +143,6 @@ typedef struct xfs_buf {
        void                    *b_fspriv2;
        void                    *b_fspriv3;
        unsigned short          b_error;        /* error code on I/O */
-       unsigned short          b_locked;       /* page array is locked */
        unsigned int            b_page_count;   /* size of page array */
        unsigned int            b_offset;       /* page offset in first page */
        struct page             **b_pages;      /* array of page pointers */
@@ -388,11 +387,15 @@ static inline int XFS_bwrite(xfs_buf_t *bp)
        return error;
 }
 
-static inline int xfs_bdwrite(void *mp, xfs_buf_t *bp)
+/*
+ * No error can be returned from xfs_buf_iostart for delwri
+ * buffers as they are queued and no I/O is issued.
+ */
+static inline void xfs_bdwrite(void *mp, xfs_buf_t *bp)
 {
        bp->b_strat = xfs_bdstrat_cb;
        bp->b_fspriv3 = mp;
-       return xfs_buf_iostart(bp, XBF_DELWRI | XBF_ASYNC);
+       (void)xfs_buf_iostart(bp, XBF_DELWRI | XBF_ASYNC);
 }
 
 #define XFS_bdstrat(bp) xfs_buf_iorequest(bp)
@@ -411,6 +414,9 @@ extern void xfs_free_buftarg(xfs_buftarg_t *, int);
 extern void xfs_wait_buftarg(xfs_buftarg_t *);
 extern int xfs_setsize_buftarg(xfs_buftarg_t *, unsigned int, unsigned int);
 extern int xfs_flush_buftarg(xfs_buftarg_t *, int);
+#ifdef CONFIG_KDB_MODULES
+extern struct list_head *xfs_get_buftarg_list(void);
+#endif
 
 #define xfs_getsize_buftarg(buftarg)   block_size((buftarg)->bt_bdev)
 #define xfs_readonly_buftarg(buftarg)  bdev_read_only((buftarg)->bt_bdev)